gravity and something else
The downward force of gravity, and the normal force perpendicular to the slide.
3 forces gravity drag lift
The force of gravity, which pulls it down; and friction forces, which pull it up.
Accoridng to Aristotle, the trolley would stop. According to Galileo the trolley would slow down and eventually stop.
As long as the book's velocity changes, there is a net forces acting on it - in other words, the forces are unbalanced. By the way ... How exactly does a book that is resting on a table slow down and come to a stop ?
Abseiling is where you walk down a cliff/mountain attached to rope .
using a rope, it is called abseiling or rappeling.
(The term "abseiling" is equivalent to the French-based word used in the US : rappelling.) "The explorers entered the mine by abseiling down an empty elevator shaft."
Gravity is a force acting down on it. A normal force is acting perpendicular to the ground at the base of the structure.
Gravity is a force acting down on it. A normal force is acting perpendicular to the ground at the base of the structure.
The downward force of gravity, and the normal force perpendicular to the slide.
While you're moving, the forces acting on you are unbalanced, and add up to something. When you're sitting, the forces acting on you are balanced, and add up to zero.
Rapelling or abseiling
3 forces gravity drag lift
The force of gravity, which pulls it down; and friction forces, which pull it up.
Accoridng to Aristotle, the trolley would stop. According to Galileo the trolley would slow down and eventually stop.
As long as the book's velocity changes, there is a net forces acting on it - in other words, the forces are unbalanced. By the way ... How exactly does a book that is resting on a table slow down and come to a stop ?